Ear plug



FIG. 1 is a perspective view of an ear plug showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The portions shown in broken lines are included for illustrative purposes only and form no part of the claimed design. 

The ornamental design for an ear plug, as shown and described. 